"I said pretty much that to my wife about a year ago, and gave her a copy of a highly recommended sexual abuse book for women. She said she'd look at it. A few days later, the book was gone, and I've never seen it since. I suspect she threw it in the trash when I wasn't looking."
So here's what happenend: YOU DROPPED THE BALL.
You can't expect her to read one book and then its all better. You CAN expect her to let the topic die again if YOU never bring it up again. You have to do what I suggested many posts back: You initiate the same conversation again, you listen to her cry, and you ask her for a real answer. Will you join me in fixing this or not, yes or no? If she says she doesn't know, she needs to think, then you say OK, we will talk again in one week and see how you feel. If at that talk one week later she tries to blow you off, you reiterate that you need an answer. You repeat this process over and over until you get her yes or her definite no.
If its yes, come back we'll help you proceed from there.
If its no, then you know that in the future you will likely leave and you tell her that directly when she says her no answer.
YOU DROPPED THE BALL...she is not responsible for you dropping the ball. All LD people want their HD spouses to shut up and forget about it, and if they do (which you DID DO) then the LD spouse believes that it really isn't that big of a deal based on the evidence that YOU DROPPED IT.
You keep talking and don't drop it until you get a definitive answer.
